Cut-out valve for locomotives.



PATENTED AUG. 23, 1904.

W. A. ENGLEQ GUT-OUT VALVE FOR LOCOMOTIVES.

APPLICATION FILED APR. 11, 1904.

N0 MODEL.

M w .H n M C M im a? 4 E o W V, w .M n Q Q G I1 ww -M a: ,3 f w 3 wflvfl 3 n @H PM a a Patented August 23, 1904.

UNITED STATES PATENT OFFICE.

WILLIAM A. ENGLE, OF POTTSVILLE, PENNSYLVANIA.

CUT-OUT VALVE FOR LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No. 768,172, dated August23, 1904.

Application filed lpril 11, 1904.

'0 all whom it natty concern:-

Be it known that I, WILLIAM A. ENGLE, a citizen of the United States,residing at Pottsvi-lle, in the county of Schuylkill and State ofPennsylvania, have'invented certain new and useful Improvements inCut-Out Valves for Locomotives; and I dodeclare the following to be afull, clear, andexact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

This invention relates to improvements in cut-out valves forlocomotives. I

The object of the invention is to provide an emergency-valve by whichthe supply of steam may be out off from the cylinders on either side ofthe locomotive without interfering with the operation of the other side.

With this object in View the invention consists of certain novelfeatures of construction, combination, and arrangement of parts, as willbe more fully described, and particularly pointed out'in theappendedclaims.

In the accompanying drawings, Figurel is a vertical sectional viewthrough the smokeboX and steam-pipes of a locomotive, showing thearrangement of the valve. Fig. 2 is a fragmentary horizontal sectionalview taken on the line 2 2 of Fig. 1. Fig. 3 is a detail verticalsectional view of the upper portion of the steam-pipes, showing amodified construction of valve.

1 Referring more particularly to the drawings, 1 denotes the smoke-boxof a locomotive. 2 and 3 denote the right and left steampipes ,,whichare arranged in said smoke-box and communicate with the steam-chests andcylinders at each side of the locomotive. The steam-pipes 2 and 3 are oftheusual curved or semicircular form and at their upper ends areconnected by a short angle-pipe 4, having at one end an enlargement 5,with which is connected the forward end of the dry pipe 6.

At the inner end of the enlargement 5 is formed a valve-seat 7 ,and inthe outer end of the same is arranged a reducing-collar 8, on the innerend of which is formed a valve-seat 9. The collar 8 is provided on itsouter end with an annular flange 8, which is adapted In the outer end ofsaid valve-stenn also passes.

Serial No. 202,675. (No model.)

to rest in an annular recess 10, formed in the outer end of theenlargement 5. The anglepipe 4 is formed on each end with annularflanges 12, by which the same is bolted to similar flanges 13 on theupper end of the steam-pipes 2 and 3. v

In the enlargement 5 of the pipe 4 is arranged a valve 14, which isadapted to'be engaged with one or the other of the valve-seats 7 or 9 toclose the end of either ofthe pipes 2 or 3. To the valve 14 is connectedthe inner end of a stem 15, which projects out through the. upper sideof the pipe 4 and through a guideway or passage 16 in a bearing-bracketor boss 17,formed on said pipe 4, boss is arranged a through which saidThe outer end of this boss projects through an opening in the side ofthe smoke-box, as shown. The outer end of the valve-stem 15 is providedwith a stuffing-box or gland 18,

ally connected to said shaft a segmental rack or quadrant 20, in whichis formed the notches 21, 22, and 23, and in the quadrant is also formeda vertically-disposed slot 24. To the side of the smoke-box below thequadrant is pivotally connected an operating-lever 25, which isslidingly connected with the quadrant 20 by means of a bolt 26, whichpasses through the slot 24. I

On the upper end of the lever 25 is pivotally connected a pawl 27,having a tooth 28, which is adapted to be engaged with one or the otherof the notches in the quadrant. When the lever 25 is pushed inwardlytoward the boiler, the valve 14 will be engaged with the seat 9, therebycutting 01f the supply of steam to the steam-pipe 3, and when said valvethe pawl 27 will be enis in this position gaged with the notch 23,thereby holding the valve upon its seat.

When the lever is pulled outwardly to the opposite end of the quadrant,the valve will be engaged with the seat 7 thereby cutting I00.

hand-wheel, which permits the stem and its pipes 2 and 3 and from thenceto the cylinofl' thesteam from the steam-pipe 2, and when l the partsare in this position they are locked. by the engagement of the pawl 27with the notch 21.

WVhen the lever 25 is in a perpendicular position and the pawl inengagement with the central notch 22, the valve will occupy a positionmidway between the seats 7 and 9, thereby permitting steam to enter fromthe dry pipe and pass into both of the steamders on each side of thelocomotive.

In Fig. 3 of the drawings is shown a modified form of valve-operatingmechanism. In this instance the stem 15 of the valve 14 is provided withscrew-threads 30, which engage with threads 31, formed on the walls ofthe passage or guideway 16 in the bracket or boss 17, and on the outerend of this form of valve-stem is secured a hand wheel 32, by which thevalve-stem may be screwed inwardly or outwardly to engage the valve 14:with either of the valve-seats 7 or 9 to open or close the pipes 2 or 3.

By the arrangement of an emergency-valve as herein shown and describedit will be seen that in case of an accident the cylinder on either sideof the locomotive or to the parts connected or controlled thereby thesupply of steam to such side may be quickly cut off from the samewithout disconnecting any of the parts or interfering in any manner withthe operation of the cylinder on the other side of the locomotive.

From the foregoing description, taken in connection with theaccompanying drawings, the construction and operation of the inventionwill be readily understood without requiring a more extendedexplanation.

Various changes in the form. proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of this invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

p 1. The combination, with the steam-pipes of an engine, of a dry pipebranched therefrom, a valve-seat at each side of said branched pipe inthe steam-pipes. and a valve comprising a stem having a head at one endadapted to fit either of the valve-seats by a straight movement of thestem, substantially as described.

2. The combination, with the steam-pi pes of an engine, of a branchpipe, a valve-scat at each side of said branch pipe, in the steampipcs,a valve-stem fitted to move in a straight line, a valve-head mountedupon one end of said stem, and means for moving said valvehcad to closeeither of the valves, substantially as described.

3. The combination with the steam-pipes of an engine, of an anglepi ')econnecting the upper ends of said steam-pipes, a valve-chamber formed inone end of said angle-pipe, a valveseat formed in one end of saidchamber, a reducing-collar arranged in the opposite end of the same, avalve-seat formed on the inner end of said reducing-collar, a valvecomprising a straight stem having a double valvehead thereon adapted tobe engaged with one or the other of said seats to close that end of thevalve-chamber, a pivoted lever and a notched quadrant for adjusting saidvalve and means for locking said valve-head in engagement with one orthe other of said seats or in a po sition midway between the same,substantially as described.

4. The combination with the steam-pipes of an engine, of an angle-pipeconnecting the upper ends of said steam-pipes, a valve-clnnnher formedin one end of said angle-pipe, valveseats formed at the opposite ends oisaid chamber, a valve adapted to be engaged with one or the other ofsaid seats or to occupy a position midway between the same, a valvestemslidably mounted in a guideway or passage formed in the side of saidangle-pipe, a double valve-head secured to said stem and adapted toclose either valve, said stem being connected at its inner end to saidvalve-head, a segmental rack arranged on the outer end of saidvalve-stem, an operating-lever pivoted to the side of the locomotive andhaving a sliding engagement with said rack whereby the same may beactuated by said lever to adjust said valve, and a pawl carried by saidlever to engage said rack and lock said valve in its adjusted position,substantially as described.

In tcstimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

\VM. A. ENGLE.

\Vitnesses:

BEN G. CowL, C. H. GRIESBAUER.

IOO

